A star in the sky also gives an idea of a point. Identify at least five such situtations in our daily life

What is the role of physics in our daily life?

Write at least three example of the diffusion in daily life

Give four uses of acids in our everyday life.

What is the contribution of electricity in our daily life?

Give an example of seeing is believing in daily life.

A water tank has the shape of an inverted right circular cone, whose semi-vertical angle is tan ^(-1)((1)/(2)) . Water is poured into it at a constant rate of 5 cu m/min. Then, the rate (in m/min) at which the level of water is rising at the instant when the depth of water in the tank is 10 m. Water is a natural resource. What is the importance of water in our daily life?